Claude Sonnet 4.6 benchmarks
Claude Sonnet 4.6 is a proprietary model from Anthropic, released 17 Feb 2026. It ranks 39th of 51 on our overall leaderboard and 24th of 51 for long context. At A$8.42 per million tokens (blended), it costs 2.3× the median model we track. It can run with requests kept in Australia on AWS Bedrock in Sydney and Melbourne.
- CONTEXT WINDOW
- 1,000,000 tokens
- MAX OUTPUT
- 128,000 tokens
- INPUT
- text, image
- WEIGHTS
- Proprietary
- RELEASED
- 17 Feb 2026
Claude Sonnet 4.6 across our rankings.
Benchmark results.
Independent test scores are for the adaptive reasoning, max effort setting. “Among tracked” ranks Claude Sonnet 4.6 against the 51 models on this site; LMArena ranks run across its full leaderboard.
| BENCHMARK | RESULT | AMONG TRACKED | SOURCE DETAIL |
|---|---|---|---|
| INDEPENDENT TESTS · ARTIFICIAL ANALYSIS | |||
| AA Intelligence Index | 30.1 | #40 of 51 | Adaptive reasoning, max effort |
| AA Coding Index | 63.0 | #33 of 42 | Adaptive reasoning, max effort |
| GPQA Diamond | 87.5% | #39 of 44 | Adaptive reasoning, max effort |
| Humanity’s Last Exam | 33.6% | #46 of 51 | Adaptive reasoning, max effort |
| AA-LCR | 80.0% | #27 of 51 | Adaptive reasoning, max effort |
| Terminal-Bench 2.1 | 71.2% | #33 of 42 | Adaptive reasoning, max effort |
| τ²-Bench (banking) | 34.4% | #25 of 41 | Adaptive reasoning, max effort |
| SciCode | 50.1% | #39 of 46 | Adaptive reasoning, max effort |
| BLIND HUMAN VOTES · LMARENA | |||
| LMArena Text66,208 votes · ±4 | 1473 | #26 of 42 | #37 of 402 on LMArena · 13 Sep 2026 |
| LMArena WebDev21,659 votes · ±5 | 1521 | #29 of 45 | #36 of 129 on LMArena · 22 Sep 2026 |
| LMArena Vision25,552 votes · ±6 | 1275 | #21 of 33 | #29 of 152 on LMArena · 13 Sep 2026 |
| LMArena Document57,813 votes · ±6 | 1478 | #10 of 26 | #13 of 44 on LMArena · 13 Sep 2026 |
| LMArena Search134,905 votes · ±5 | 1201 | #9 of 12 | #10 of 34 on LMArena · 24 Aug 2026 |
| LMArena Agent39,452 sessions | #31 | #27 of 37 | #31 of 46 on LMArena · 15 Sep 2026 |
What Claude Sonnet 4.6 costs in Australian dollars.
List prices converted at the snapshot’s RBA rate, excluding GST. Reasoning models are billed for their thinking as output tokens, so heavier settings cost more than the job estimates show.
| PER MILLION TOKENS | AUD | USD LIST |
|---|---|---|
| Input tokens | A$4.21 | US$3.00 |
| Output tokens | A$21.06 | US$15.00 |
| Blended (3 in : 1 out) | A$8.42 | US$6.00 |
| JOB | COST (AUD) | MEDIAN MODEL |
|---|---|---|
| Customer support replyPER 1,000 REPLIES | A$14.74 | ≈ A$6.58 |
| Summarise a 30-page documentPER 100 DOCUMENTS | A$10.11 | ≈ A$4.74 |
| Agentic coding taskPER 10 TASKS | A$8.00 | ≈ A$3.72 |
| SETTING | INTELLIGENCE | A$ / 1M | SPEED |
|---|---|---|---|
| Adaptive reasoning, max effort | 30.1 | A$8.42 | |
| Non-reasoning, high effort | 24.7 | A$8.42 | |
| Non-reasoning, low effort | 23.3 | A$8.42 |
Running Claude Sonnet 4.6 in Australia.
It can run with requests kept in Australia on AWS Bedrock in Sydney and Melbourne. How the platforms compare →
| PLATFORM | AVAILABILITY | DETAIL |
|---|---|---|
| AWS Bedrock · Sydney | AU ROUTING | |
| AWS Bedrock · Melbourne | AU ROUTING | |
| Azure · Australia East | NOT IN AU | |
| Google Vertex AI · Sydney | GLOBAL |
Compare it with.
Claude Sonnet 4.6, answered.
How much does Claude Sonnet 4.6 cost in Australian dollars?
Claude Sonnet 4.6 lists at US$3.00 per million input tokens and US$15.00 per million output tokens — A$4.21 and A$21.06 at A$1 = US$0.7123 (RBA, 22 Sep 2026), excluding GST. A typical customer support reply works out at about A$14.74 per 1,000 replies, before any reasoning tokens.
Can I use Claude Sonnet 4.6 in Australia with data kept onshore?
Claude Sonnet 4.6 can run with requests kept in Australia on AWS Bedrock in Sydney and Melbourne. Availability comes from the cloud providers’ own documentation; check your provider’s current terms before relying on it for data-residency obligations.
Is Claude Sonnet 4.6 good for coding?
It ranks 33rd of 42 on our coding ranking, with an Artificial Analysis Coding Index of 63.0 and an LMArena WebDev rating of 1521 (36th of 129). The current leader is Claude Fable 5.1.
How good is Claude Sonnet 4.6 at agent and automation work?
It ranks 30th of 41 on our agents ranking, completing 34.4% of τ²-Bench banking customer-service tasks and 71.2% of Terminal-Bench 2.1 tasks.
What is Claude Sonnet 4.6’s context window?
Anthropic documents a context window of 1,000,000 tokens (1M), with up to 128,000 output tokens. On AA-LCR, which tests reasoning across ~100,000-token document sets, it scores 80.0%.
Ratings: LMArena leaderboard dataset (CC BY 4.0), rescaled for the lens scores · leaderboards to 22 Sep 2026
Evaluations, prices and speed: Artificial Analysis (artificialanalysis.ai) · fetched 23 Sep 2026
Exchange rate: Reserve Bank of Australia, table F11.1 · A$1 = US$0.7123 on 22 Sep 2026 · prices exclude GST
Snapshot 23 Sep 2026 · updated weekly · How the rankings work →